package com.imooc.service.impl;

import com.imooc.dto.OrderDTO;
import com.imooc.enums.ResultEnum;
import com.imooc.exception.SellException;
import com.imooc.service.OrderMasterService;
import com.imooc.service.PayService;
import com.imooc.utils.JsonUtil;
import com.imooc.utils.MathUtil;
import com.lly835.bestpay.enums.BestPayTypeEnum;
import com.lly835.bestpay.model.PayRequest;
import com.lly835.bestpay.model.PayResponse;
import com.lly835.bestpay.model.RefundRequest;
import com.lly835.bestpay.model.RefundResponse;
import com.lly835.bestpay.service.impl.BestPayServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;

/**
 * @author Create By Liuqz
 * @date 2018/6/5 15:51
 */
@Service
@Slf4j
public class PayServiceImpl implements PayService {

    private static final String ORDER_NAME = "微信点餐订单";

    @Autowired
    private BestPayServiceImpl bestPayService;

    @Autowired
    private OrderMasterService orderMasterService;

    @Override
    public PayResponse create(OrderDTO orderDTO) {
        PayRequest payRequest = new PayRequest();
        payRequest.setOpenid(orderDTO.getBuyerOpenid());
        payRequest.setOrderId(orderDTO.getOrderId());
        payRequest.setOrderAmount(orderDTO.getOrderAmount().doubleValue());
        payRequest.setOrderName(ORDER_NAME);
        payRequest.setPayTypeEnum(BestPayTypeEnum.WXPAY_H5);

        log.info("【微信支付】 request={}",JsonUtil.toJson(payRequest));

        PayResponse payResponse = bestPayService.pay(payRequest);

        log.info("【微信支付】,reponse={}",payResponse);
        return payResponse;
    }

    @Override
    public PayResponse notify(String notifyData) {
        //1.验证签名
        //2.支付状态
        //3.校验支付金额
        //4.校验支付人 (下单人 == 支付人)
        PayResponse payResponse = bestPayService.asyncNotify(notifyData);
        log.info("【微信支付】 异步通知,payResponse={}",JsonUtil.toJson(notifyData));

        //查询订单
        OrderDTO orderDTO = orderMasterService.findOne(payResponse.getOrderId());

        //判断订单是否存在
        if (orderDTO == null) {
            log.error("【微信支付】 异步通知,订单不存在. orderId={}",orderDTO.getOrderId());
            throw new SellException(ResultEnum.ORDER_NOT_EXIST);
        }

        //判断金额是否一致
        if (!MathUtil.equals(orderDTO.getOrderAmount().doubleValue() , payResponse.getOrderAmount())){
            log.error("【微信支付】 异步通知,订单金额不一致,orderId={},订单金额={},微信通知金额={}",orderDTO.getOrderId(),orderDTO.getOrderAmount(),payResponse.getOrderAmount());
            throw new SellException(ResultEnum.WXPAY_NOTIFY_MONEY_VERIFY_ERROR);
        }
        //修改订单状态
        orderMasterService.paid(orderDTO);

        return payResponse;
    }

    /**
     * 退款
     * @param orderDTO
     */
    @Override
    public RefundRequest refund(OrderDTO orderDTO) {
        RefundRequest refundRequest = new RefundRequest();
        refundRequest.setOrderId(refundRequest.getOrderId());
        refundRequest.setOrderAmount(refundRequest.getOrderAmount().doubleValue());
        refundRequest.setPayTypeEnum(BestPayTypeEnum.WXPAY_H5);
        log.info("【微信退款】 request={}",JsonUtil.toJson(refundRequest));

        RefundResponse refundResponse = bestPayService.refund(refundRequest);

        log.info("【微信退款】 response={}",JsonUtil.toJson(refundResponse));
        return refundRequest;
    }
}
